The ring size range in China is 4-26, in Europe it is 44-61, and in the United States it is 5-12. Therefore, ring size 11 may be in either China or the United States, depending on the ring brand.
Mainland version ring size comparison chart
According to the table below, the circumference of the mainland version corresponding to ring number 11 is 51mm and the diameter is 16.2mm.
Hong Kong Ring Size Comparison Table
According to the table below, the circumference of the Hong Kong version corresponding to ring number 11 is 52mm and the diameter is 15.5mm.
US Ring Size Comparison Table
According to the table below, the circumference of the US version corresponding to ring number 11 is 64.4mm and the diameter is 20mm.
